本美国国家标准包含超高速数字用户线（VDSL）收发器系统的技术要求。VDSL收发器旨在通过电话接入网络中的现有铜线进行每秒高达数十兆比特的高速数据传输。根据本标准的规定，VDSL可使用高达12MHz的有线频谱，以适应对称和非对称数据速率。它可以部署到不同地点的终端用户，以访问网络，包括Exchange和Cabinet。VDSL旨在通过使用高于语音带的频率进行数据传输，在同一铜线上与POTS服务共存。

This American National Standard contains the technical requirements for Very-high bit-rate Digital Subscriber Line (VDSL) transceiver systems. VDSL transceivers are intended for very-high speed data transmission up to tens of Megabits per seconds over existing copper wires in the telephone access network. As specified in this Standard, VDSL may use wireline spectrum up to 12MHz to accommodate both symmetrical and asymmetrical data rates. It can be deployed to ser end-use customers from different points to access network, including Exchange and Cabinet. VDSL is intended to co-exist with POTS services on the same copper wire by using frequencies above voice-band for data transmission.